54101-T08-36 Equivalent & Substitute Parts

Part Overview

The 54101-T08-36 is a rectangular connector header manufactured by Amphenol ICC (FCI) in the BERGSTIK® series. This through-hole vertical mount connector features 36 positions at 0.100" (2.54mm) pitch with male pins, tin-plated mating contacts, and phosphor bronze contact material. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	36
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0
Contact Finish - Mating	Tin
Contact Material	Phosphor Bronze
Insulation Height	0.100" (2.54mm)
Overall Contact Length	0.450" (11.43mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Connector Type & Contact Configuration: Header with male pins, 36 positions, 0.100" (2.54mm) pitch
Mounting & Termination: Through-hole solder termination
Electrical Performance: 3A per contact current rating, UL94 V-0 flammability rating
Physical Compatibility: Insulation height 0.100" (2.54mm), contact shape square, mating contact length 0.230" (5.84mm)

Substitute parts are grouped by contact post length, which determines board stack-up compatibility:

Group A - Standard Post Length (0.095" to 0.122"): 68000-436HLF, GBC36SAAN, GEC36SAAN, M20-9773642, M20-9773646, PBC36SAAN

Group B - Extended Post Length (0.230" to 0.520"): PBC36SABN, PBC36SACN, PBC36SADN, PBC36SAEN

Parameter Comparison

Parameter	54101-T08-36	68000-436HLF	GBC36SAAN	GEC36SAAN	M20-9773642	M20-9773646	PBC36SAAN	PBC36SABN	PBC36SACN	PBC36SADN	PBC36SAEN
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Sullins	Sullins	Harwin	Harwin	Sullins	Sullins	Sullins	Sullins	Sullins
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway	Header, Cuttable	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	36	36	36	36	36	36	36	36	36	36	36
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.228" (5.80mm)	0.228" (5.80mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.120" (3.05mm)	0.095" (2.41mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.122" (3.10mm)	0.122" (3.10mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)
Overall Contact Length	0.450" (11.43mm)	0.425" (10.80mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.452" (11.48mm)	0.452" (11.48mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.650" (16.51mm)	0.750" (19.05mm)	0.850" (21.59mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Tin	Gold	Tin	Gold	Tin	Gold	Gold	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Current Rating	3A per Contact	3A per Contact	3A	3A	3A per Contact	3A per Contact	3A	3A	3A	3A	3A
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 150°C	-65°C ~ 150°C	-40°C ~ 105°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

For Direct Replacement (Standard Post Length)

68000-436HLF from Amphenol ICC (FCI) provides the closest functional equivalence as an active product from the same manufacturer. It maintains BERGSTIK® series compatibility with updated BERGSTIK® II design. RoHS compliance and active product status make this the primary recommendation for new designs.

GEC36SAAN and GBC36SAAN from Sullins Connector Solutions offer ROHS3 compliance with extended operating temperature range (-65°C ~ 150°C). Both feature phosphor bronze contacts and identical mating contact geometry. GEC36SAAN provides tin mating finish matching the original part; GBC36SAAN provides gold mating finish for enhanced corrosion resistance.

M20-9773646 from Harwin Inc. provides ROHS3 compliance with tin mating finish and cuttable header design. Operating temperature range is -40°C ~ 105°C, which is narrower than the original specification. Brass contact material differs from phosphor bronze but maintains equivalent electrical performance at 3A per contact.

PBC36SAAN from Sullins Connector Solutions offers ROHS3 compliance with gold mating finish and phosphor bronze contacts. Operating temperature range matches the original at -65°C ~ 125°C.

For Extended Stack-Up Applications

PBC36SABN, PBC36SACN, PBC36SADN, and PBC36SAEN from Sullins Connector Solutions provide identical electrical and mechanical specifications to PBC36SAAN with extended post lengths (0.230" to 0.520") for applications requiring deeper board penetration. All feature ROHS3 compliance, gold mating finish, and phosphor bronze contacts.

Compliance Considerations

All substitute parts except M20-9773642 and M20-9773646 maintain the original -65°C ~ 125°C operating temperature range. The Harwin M20 series operates at -40°C ~ 105°C and should be selected only when application temperature requirements fall within this narrower range.

All substitute parts are RoHS compliant, addressing the non-compliance status of the original 54101-T08-36.

Frequently Asked Questions (FAQ)

Q: Can 68000-436HLF directly replace 54101-T08-36 on existing PCBs?

A: Yes. The 68000-436HLF maintains identical pitch (0.100"), position count (36), mating contact length (0.230"), and insulation height (0.100"). Post length is 0.095" versus 0.120" on the original, resulting in 0.025" less board penetration. This difference is within typical PCB tolerance and does not affect electrical or mechanical function.

Q: What is the difference between tin and gold mating finishes?

A: Tin-plated contacts (54101-T08-36, GEC36SAAN, M20-9773646) provide standard corrosion resistance suitable for general applications. Gold-plated contacts (GBC36SAAN, PBC36SAAN, PBC36SABN, PBC36SACN, PBC36SADN, PBC36SAEN) provide enhanced corrosion resistance and lower contact resistance, recommended for high-reliability or high-frequency applications.

Q: Are breakaway and cuttable headers compatible with the original design?

A: Breakaway headers (Sullins GBC36SAAN, GEC36SAAN, PBC36 series) and cuttable headers (Harwin M20-9773642, M20-9773646) are mechanically and electrically compatible with the original unshrouded header. The breakaway or cuttable feature allows individual position removal without affecting remaining positions. This is an enhancement that does not compromise compatibility.

Q: Which substitute should I select for new designs?

A: For new designs, select from active products with ROHS3 compliance: 68000-436HLF (Amphenol ICC), GEC36SAAN (Sullins, tin finish), or PBC36SAAN (Sullins, gold finish). All maintain the original operating temperature range and electrical specifications. Choice between tin and gold finish depends on application corrosion environment and contact resistance requirements.

Q: What is the significance of post length variations in the PBC36 series?

A: Post length determines how far the solder tail extends below the PCB. Standard length (0.120") suits typical single-board applications. Extended lengths (0.230" to 0.520") accommodate stacked PCBs or applications requiring deeper solder joint penetration. Select post length based on PCB stack-up geometry and solder process requirements.

Q: Can M20-9773642 or M20-9773646 be used in applications requiring -65°C operation?

A: No. The Harwin M20 series operates at -40°C ~ 105°C, which does not meet the original -65°C lower temperature limit. These parts are suitable only for applications with operating temperatures within -40°C ~ 105°C range.

Q: Are there inventory considerations when selecting substitutes?

A: Yes. Inventory levels vary: PBC36SABN (7944 pcs), M20-9773642 (1624 pcs), GEC36SAAN (1015 pcs), and 68000-436HLF (776 pcs) offer higher availability. Selection should balance technical requirements with supply chain considerations.

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